The consequences of opting out of the global community would be severe and long-lasting.
Donald Trump has said he's "not a great believer in man-made climate change."
That's cause for "great concern," according to an open letter from Stephen Hawking and 374 other scientists released Tuesday. The letter criticized Trump for suggesting the United States back out of the Paris Accord to fight climate change.
So what's a 'Parexit'?
The letter refers to a possible "Parexit," a Brexit-based pun on the idea of the United States withdrawing from the Paris Agreement.
That would send a clear signal to the rest of the world: "The United States does not care about the global problem of human-caused climate change," the letter's authors wrote. The scientists urged America to take the lead to reduce greenhouse gas emissions.
What's the Paris Agreement?
It's a United Nations resolution signed by 195 nations. President Obama supported its formation, and Hillary Clinton has expressed support for continuing to follow its conditions.
The pact's primary aim is to keep Earth's temperature from increasing more than 2 degrees Celsius above pre-Industrial Revolution levels. Going over that could cause a catastrophic rise in sea levels.
It's late in July and it is really cold outside in New York. Where the hell is GLOBAL WARMING??? We need some fast! It's now CLIMATE CHANGE— Donald J. Trump (@realDonaldTrump) July 29, 2014
Here's an example of Trump's contempt for the concept of climate change.
It's really cold outside, they are calling it a major freeze, weeks ahead of normal. Man, we could use a big fat dose of global warming!— Donald J. Trump (@realDonaldTrump) October 19, 2015
This one came during an unusually cold fall.
It snowed over 4 inches this past weekend in New York City. It is still October. So much for Global Warming.— Donald J. Trump (@realDonaldTrump) November 1, 2011
Trump's anti-climate change views go back to at least 2011.
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